Dear Friends.,
As of my opinion / Assumption of previous "FORUM" sections & "EXPERTS" Section for "When we Complete our "PREVIOUS MONTH RETURNS - JULY" then only we can file our next month returns.. Like We file GSTR 1, 2 and 3 for the month of July then We can file GSTR 1, 2 and 3 for the month of August...
This opinion in " @ askGST_GoI"
See the attachment... Can You get some Clarity...
>>> GOOD luck <<<